Tire



G.-REIDER.

TIRE.

APPLICATION FILED SEPT- 8. i921.

Patented Apr. 4, 1922.

Specification of Letters Patent.

Patented Apr. 4, 1922.

Application led September 8, 1921. Serial No. 499,214.

tire in accordance with the principles ofiny y invention, the tire beingshown on a. rim` as in use.

Fig. 2 is an enlarged cross sectional detail of the tire. y

Fig. 3 is a fragmentary perspective ofthe puncture proof spring steelband and fabric. wrapping. v

Fig. 4 is a fragmentaryV enlarged sectional view of the wrapped band. Y

The fabric tire casing l may be any of the usual constructions. Theinnerfabric breaker strip 2 is applied to the tread portion of the casing l.`The treadgum rubber filler 3 is applied to the breaker strip 2. Thewrapped spring steel. band 4 is applied to the rubber filler 3. i Theouter fabric breaker strip 5 is applied to cover the band 4 and thefiller 3 and the tread gum rubber 6 is applied to cover the whole tire.

special attention is called to the wrapped spring steel band 4:. A stripof spring steel 7 of the desired width and thickness is cut to theproper length to fit the filler 3 and the ends of the strip are buttwelded to* gether to form a continuous hoop. A coating of suitablecement 8 is applied to the hoop all around. A strip 9 of suitable fabric is wound spirally around the hoop with' the edges of the fabricoverlapping.4 The wrapping may be saturated with and covered withsuitable cement before it is wound upon the hoop. or the wrappedband maybe covered with the cement after the wrapping is done. It is importantthat the parts be of the proper nature to thoroughly vulcanize togetherso that the hoop is a fixed part of the tire and when the propermaterial is used and properly treated this result is obtained,

-be applied in building new The steel band 4 is preferably flattransversely, and the filler 3 is built up or formed tol conformthereto,and is provided at its sides with inclined walls l2. breakerstrip 5 is formed of such Width that its edges provide iaps 13 which arelap over the inclined walls `12 of the filler and brought to the innerbreaker strip so that when the tread 6 is applied a lateral anchoragewill be provided for the band. The iiaps extending obliquelyinto theside portions of the tire also serve 4to oppose pulling away of the bandat thefupper portion of the tire when the latter is in wheel rim andsubjected to a load'.

rlhe puncture proof wrapped band may tires or itmay be applied inretreading old tires.

' It is obvious that the steel hoop 7 cannot be punctured by slivers,`glass, nails or the like and that the inner tubel() is thus protectedfrom puncture. In Fig, l I have shown how the hoop7 turns the nailsll'and ped,

The outer l place on the y keeps them from 4penetrating the fabric or Yinner tube. The width of the hoop 7 will be l in proportion to thediameter of the inner tube.

Thusl have produced a punctureproof pneumatic tire,` and various changesmay be made inthe 'details of construction without departing from thespirit of my invention as claimed.

I claim:

1. A pneumatic tire. comprising a fabric casing, an inner breaker stripcovering the tread of the casing, a filler upon the inner breaker strip,a fabric wrapped steel band upon the ller, an outer breaker strip uponthe band and a tread upon another breaker strip, all properly cementedand vulcanized together; said Aouter breaker strip extending obliquelyfrom the sides of the band into the sides of the casing.

9. In a pneumatic tire, a fabric casing, a filler formed peripherally ofsaid casing having inclined side walls, a metal ring seating on saidfiller between the sides thereof, a fabric breaker strip formed withside flaps, said breaker strip extending over the band with the side apslying on the inclined sides of the filler, and a tread body covering thecasing and embedding the breaker strip and band.

' GEGRGE REIDER.

